SAN DIEGO (AP) — It is still not known if the soldier accused of killing 17 Afghans was ever diagnosed with post-traumatic stress disorder.But officials say that even if Sgt. Robert Bales had been, that alone would not have prevented him from being sent back to war.The Army diagnosed more than 76,000 soldiers with PTSD between 2000 and 2011. Of those more than 65,000 were diagnosed at some stage of their deployment.The Bales case has sparked debate about whether the Army failed in detecting a soldier's mental instability or pushed him too far.The Army is reviewing all its mental health programs in light of the March 11 killings.Mental health workers say it's reasonable to consider PTSD in the case, but it was likely not the sole factor.They say that there is much that is not known about the psychological wounds of war.